The Ford Sierra RS Cosworth 1986-1992 Workshop Repair Service Manual offers comprehensive technical information for maintaining and repairing your vehicle. This manual encompasses all models, engines, trim levels, and transmission types, making it an invaluable resource for any owner or mechanic. Covering a wide array of topics, the manual provides detailed instructions for a range of maintenance and repair procedures, including general maintenance, troubleshooting, engine service and repair, transmission service and repair, brake system, wiring diagrams, electrical system, suspension, periodic lubrication, steering, cooling system, fuel injection/fuel system, emission system, heater/air conditioning, engine control system, chassis/body, restraint system, interior, differential/drive, and axle. This manual is written by the manufacturer and includes hundreds of pages of diagrams and detailed information, ensuring accuracy and completeness. It helps guide users through repairs with clear, step-by-step instructions, accompanied by detailed illustrations, drawings, and photographs. The manual also features enlarged insets to help identify and examine parts in detail, along with a numbered table of contents for quick navigation. The manual's comprehensive approach makes it easy to diagnose and repair problems within the vehicle's electrical system. Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use. By utilizing this manual, you can confidently perform repairs and maintenance on your Ford Sierra RS Cosworth, saving time and money on expensive repair bills.

The Ford Sierra RS Cosworth, produced from 1986 to 1992, is a high-performance variant of the Ford Sierra, a mid-size car manufactured by Ford Europe from 1982 to 1993. The RS Cosworth was born out of Ford's motorsport ambitions, specifically its involvement in the World Rally Championship. To homologate the car for Group A rallying, Ford partnered with the renowned engineering firm Cosworth. The result was a formidable machine, featuring a potent 2.0-liter turbocharged four-cylinder engine producing 201 bhp in its initial form. The engine, renowned for its potent power delivery and unmistakable exhaust note, was coupled to a five-speed manual gearbox and a sophisticated four-wheel drive system, a rarity in its time. The RS Cosworth also boasted a range of performance-enhancing features, including revised suspension, larger brakes, and a lightweight body. These additions, combined with its aerodynamically efficient design, resulted in a car that could reach a top speed of 145 mph and achieve a 0-60 mph time of 6.5 seconds. The Ford Sierra RS Cosworth's legacy extends far beyond its impressive performance figures. It captured the imagination of enthusiasts worldwide, becoming a symbol of 1980s automotive excellence and a highly sought-after collector's item. The car's iconic status is further cemented by its success in motorsport, with numerous victories in the British Touring Car Championship and the World Rally Championship. Its distinctive styling, characterized by flared wheel arches, a distinctive rear spoiler, and a robust front bumper, remains instantly recognizable even today. The RS Cosworth's impact on the automotive world is undeniable, leaving a lasting impression on the development of performance cars and solidifying its place as one of the most celebrated hot hatches of all time.